San Bernardino, CA

9:03 AM PDT on May 21, 2013 (GMT -0700)
Elev: 1053 ft
Lon: 117.3° W
Lat: 34.1° N
Source
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Global: Violent Tornado Causes Catastrophic Damage in Moore, Oklahoma
News
Photos: Deadly Tornado Outbreak Strikes Plains
May 21, 2013
A tornado outbreak struck the Plains states on May 19, 2013, leaving widespread damage in its wake.
Pres. Obama Says Focus Is On 'Urgent Work of Rescue'
May 21, 2013
The search and rescue efforts are ongoing in Moore, Okla. after a massive tornado levelled the town and local schools.
Children and the Tornado: Helping Kids Cope
May 21, 2013
Any time children are involved in a catastrophe, emotional reactions among survivors and across the nation are particularly strong.
Recap: Tornadoes Rake Oklahoma, Kansas, Iowa
May 21, 2013
The weather imagery, video and recap from tornadoes in the Plains on May 19, 2013.
Tornado Took Similar Path to 1999 F5
May 21, 2013
Moore, Oklahoma is no stranger to devastating tornadoes.
'I Expected Chaos:' Scenes from Okla. School
May 21, 2013
A photographer who was among the first to arrive at an Oklahoma Elementary School after a tornado destroyed it, describes the heart-wrenching scene.
Obama: 'Americans From Every Corner of This Country Will Be With Them'
May 21, 2013
Obama has declared a major disaster in Oklahoma, ordering federal aid to supplement state and local recovery efforts. The president also spoke Monday with Oklahoma Gov. Mary Fallin and Rep. Tom Cole, whose home is in the heavily damaged town of Moore.
A Timeline of Deadly Events in Moore, Okla.
May 21, 2013
Check out this comprehensive timeline of the events that transpired in Moore, Okla.
In Tornado's Wake, Worried Parents Seek Out Kids
May 21, 2013
A desperate search was underway by parents looking to find children after the massive tornado.
Massive Tornado Damages Small Okla. City Hospital
May 21, 2013
Officials say a tornado hit a small hospital in suburban Oklahoma City, but all the 30 patients inside survived.
Moore Already at Work on Recovery, Says Mayor
May 21, 2013
Glenn Lewis was the mayor of Moore, Okla., when the strongest tornado on record whipped the city in 1999, and he says the most recent storm won't deter the community from rebuilding.
Moore Survivor Finds Dog Buried Alive
May 21, 2013
Tornado survivor is interrupted in the middle of interview by little dog digging out of rubble
Oklahoma Tornado: How to Help
May 21, 2013
There are several agencies asking for donations to help those hit hard by the Oklahoma tornadoes.
Multiple Children Dead at Okla. School
May 21, 2013
More than a dozen children are dead in the devastating Moore, Okla. tornado.
Twitter Responds With Prayers for Oklahoma Tornado Victims
May 21, 2013
Twitter responds to the devastation brought by tornadoes Monday in suburban Oklahoma City, offering condolences and prayers for the victims and survivors.
In Their Words: The Oklahoma Tornado Tragedy
May 21, 2013
Our reporters were among the first national media to report from Moore, Okla. shortly after a powerful tornado decimated the town. These are their thoughts as they report from the scene.
Obama Declares Major Disaster in Oklahoma
May 21, 2013
President Barack Obama has declared a major disaster in Oklahoma as the state recovers from a massive tornado that ripped through the Oklahoma City suburbs Monday, killing dozens and flattening entire neighborhoods.
Photos, Social Media Capture Terror of Okla. Tornadoes
May 20, 2013
Catastrophic tornadoes developed in Oklahoma on Monday. Here are photos and social media reports.
Huge Rock Crashes Into Moon, Sparks Giant Explosion
May 20, 2013
The moon has a new hole on its surface thanks to a boulder that slammed into it in March, creating the biggest explosion scientists have seen on the moon since they started monitoring it.
Deadly Rainstorms Kill 55 in Southern China
May 20, 2013
Chinese authorities say rainstorms that battered southern China this week have killed 55 people and left 14 others missing.
More News Articles
Weather Summary
Kari Kiefer
Weather Underground Forecast for Tuesday, May 21, 2013.

After a devastating severe weather day in the Plains on Monday, severe weather is expected to fire up again across the nation's mid-section again on Tuesday.

The nearly stationary low over the Northern Plains will gradually weaken as it shifts eastward into the Midwest on Tuesday, while the system's associated cold front trails southwestward from the low across the Mid-Mississippi Valley through the Southern Plains. Favorable energy and conditions ahead of the cold front combined with the moisture laden conditions of the nation's mid-section will set the stage for multiple clusters of thunderstorms to develop from the Midwest into the Ozarks and the Southern Plains. Portions of northeastern Texas, extreme southeastern Oklahoma, central and southern Arkansas, and northwestern Louisiana are at moderate risk of severe thunderstorm activity as environmental conditions remain favorable for tornadoes, damaging wind gusts, and very large hail. Areas surrounding this moderate risk region from the parts of central and eastern Texas into the Upper Great Lakes are at slight risk of severe thunderstorm development with hail, damaging wind gusts, and isolated tornadoes.

Meanwhile, areas of heavy rain and widely scattered showers will continue near the low in the Northern Plains and Upper Mississippi Valley and near and to the north of a nearly stationary frontal boundary extending out ahead of the system from the Great Lakes into the Northeast. Continued precipitation in already saturated areas of the Northern Plains and Upper Midwest will maintain flood concerns from parts of North Dakota into northern Wisconsin.

Elsewhere, scattered showers and thunderstorms are expected to persist in the Mid-Atlantic and southeastern corner of the nation.
Weather Underground Forecast for Tuesday, May 21, 2013.

After a devastating severe weather day in the Plains on Monday, severe weather is expected to fire up again across the nation's mid-section again on Tuesday.

The nearly stationary low over the Northern Plains will gradually weaken as it shifts eastward into the Midwest on Tuesday, while the system's associated cold front trails southwestward from the low across the Mid-Mississippi Valley through the Southern Plains. Favorable energy and conditions ahead of the cold front combined with the moisture laden conditions of the nation's mid-section will set the stage for multiple clusters of thunderstorms to develop from the Midwest into the Ozarks and the Southern Plains. Portions of northeastern Texas, extreme southeastern Oklahoma, central and southern Arkansas, and northwestern Louisiana are at moderate risk of severe thunderstorm activity as environmental conditions remain favorable for tornadoes, damaging wind gusts, and very large hail. Areas surrounding this moderate risk region from the parts of central and eastern Texas into the Upper Great Lakes are at slight risk of severe thunderstorm development with hail, damaging wind gusts, and isolated tornadoes.

Meanwhile, areas of heavy rain and widely scattered showers will continue near the low in the Northern Plains and Upper Mississippi Valley and near and to the north of a nearly stationary frontal boundary extending out ahead of the system from the Great Lakes into the Northeast. Continued precipitation in already saturated areas of the Northern Plains and Upper Midwest will maintain flood concerns from parts of North Dakota into northern Wisconsin.

Elsewhere, scattered showers and thunderstorms are expected to persist in the Mid-Atlantic and southeastern corner of the nation.
More News Articles

San Bernardino Weather at a Glance

Updated 8:53 AM PDT
Weather Station
Chino (KCNO)
Elevation
650 ft
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Now
Haze
Haze
Temperature
65 °F
Feels Like 65 °F
Wind(mph)
5
Sunrise / Set
5:43 AM
7:48 PM
Moon
Waxing Gibbous
Today
Partly Cloudy 88 °F
Partly Cloudy
Tonight
Partly Cloudy 54 °F
Partly Cloudy
Tomorrow
Partly Cloudy 79 | 54 °F
Partly Cloudy
Thursday
Fog 73 | 52 °F
Fog
Friday
Partly Cloudy 73 | 54 °F
Partly Cloudy
Saturday
Partly Cloudy 77 | 52 °F
Partly Cloudy
Today is forecast to be Cooler than yesterday.
Conditions
Pressure
29.94 in
Visibility
3.0 miles
Clouds
Overcast 1000 ft
Moisture
Humidity
78%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KCNO 211553Z VRB04KT 3SM HZ OVC010 18/14 A2995 RMK AO2 SLP139 T01830144
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Temperature
65 °F
71,68,66,62,61,59,59,61,59,60,61,60,61
Dew Point
58 °F
Wind
Speed / Dir
5 mph from Variable
Wind Gust
Health
UV
1 out of 16
Pollen
4.80 out of 12
Pollen Forecast
Ozone
Good
Flu Activity
Sporadic
View Flu Map
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Source: BestForecast
Descriptive Forecast
Tuesday
partlycloudy Partly cloudy. High of 88F. Winds from the WSW at 5 to 15 mph.
Tuesday Night
nt_partlycloudy Partly cloudy. Fog overnight. Low of 54F. Winds from the WSW at 5 to 15 mph.
Wednesday
partlycloudy Partly cloudy. Fog early. High of 79F. Winds from the WSW at 5 to 20 mph.
Wednesday Night
nt_mostlycloudy Overcast. Fog overnight. Low of 54F. Winds from the SSW at 5 to 20 mph.
Thursday
partlycloudy Overcast in the morning, then partly cloudy. Fog early. High of 73F. Winds from the SSW at 10 to 15 mph.
Thursday Night
nt_partlycloudy Clear in the evening, then partly cloudy. Low of 52F. Winds less than 5 mph.
Friday
partlycloudy Partly cloudy. High of 73F. Winds from the SSW at 5 to 15 mph.
Friday Night
nt_partlycloudy Partly cloudy. Low of 54F. Winds less than 5 mph.
Saturday
partlycloudy Partly cloudy in the morning, then overcast. High of 77F. Winds from the SSW at 5 to 15 mph.
Saturday Night
nt_partlycloudy Partly cloudy. Low of 52F. Winds less than 5 mph.
Sunday
partlycloudy Partly cloudy. High of 81F. Winds from the SSW at 5 to 15 mph.
Sunday Night
nt_partlycloudy Partly cloudy. Low of 57F. Winds less than 5 mph.
Monday
partlycloudy Partly cloudy. High of 81F. Winds from the SW at 5 to 15 mph.
Monday Night
nt_partlycloudy Partly cloudy. Low of 54F. Winds less than 5 mph.
Tuesday
partlycloudy Partly cloudy. High of 77F. Winds from the SSW at 5 to 15 mph.
Tuesday Night
nt_partlycloudy Partly cloudy. Low of 54F. Winds less than 5 mph.
Wednesday
partlycloudy Partly cloudy. High of 75F. Winds from the WSW at 5 to 15 mph.
Wednesday Night
nt_partlycloudy Clear. Low of 55F. Winds less than 5 mph.
Thursday
clear Clear. High of 75F. Winds from the WSW at 5 to 15 mph.
Thursday Night
nt_clear Clear. Low of 55F. Winds less than 5 mph.
Friday
clear Clear. High of 84F. Winds from the WNW at 5 to 15 mph.
Friday Night
nt_clear Clear. Low of 55F. Winds less than 5 mph.
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Weather Forecast for San Bernardino CA

View Calendar 10-Day Forecast for station KCNO

Tuesday, 21
Partly Cloudy
88 | 54 °F
Partly Cloudy
Chance of
Precipitation
0%
Wednesday, 22
Partly Cloudy
79 | 54 °F
Partly Cloudy
Chance of
Precipitation
10%
Thursday, 23
Fog
73 | 52 °F
Fog
Chance of
Precipitation
10%
Friday, 24
Partly Cloudy
73 | 54 °F
Partly Cloudy
Chance of
Precipitation
0%
Saturday, 25
Partly Cloudy
77 | 52 °F
Partly Cloudy
Chance of
Precipitation
0%
Sunday, 26
Partly Cloudy
81 | 57 °F
Partly Cloudy
Chance of
Precipitation
0%
Monday, 27
Partly Cloudy
81 | 54 °F
Partly Cloudy
Chance of
Precipitation
0%
Tuesday, 28
Partly Cloudy
77 | 54 °F
Partly Cloudy
Chance of
Precipitation
0%
Wednesday, 29
Partly Cloudy
75 | 55 °F
Partly Cloudy
Chance of
Precipitation
0%
Thursday, 30
Clear
75 | 55 °F
Clear
Chance of
Precipitation
0%
Source: BestForecast at 6:19 AM PDT on May 21, 2013
Descriptive Forecast
Tuesday
partlycloudy Partly cloudy. High of 88F. Winds from the WSW at 5 to 15 mph.
Tuesday Night
nt_partlycloudy Partly cloudy. Fog overnight. Low of 54F. Winds from the WSW at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 61 | 54 79 | 51 77 | 51 60 | 54
Wind 2 mph WSW 11 mph WSW 15 mph WSW 8 mph WSW
Humidity 76% 38% 42% 78%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 21% 33% 28% 19%
Conditions Clear Partly Cloudy Partly Cloudy Fog
Sunrise & Sunset
5:43 AM
7:48 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.57], Average RMSE [2.15]
The National Weather Service forecast quality is good. MaxT RMSE [1.97], Average RMSE [2.21] : Use NWS
Source: BestForecast at 6:19 AM PDT on May 21, 2013
Descriptive Forecast
Wednesday
partlycloudy Partly cloudy. Fog early. High of 79F. Winds from the WSW at 5 to 20 mph.
Wednesday Night
nt_mostlycloudy Overcast. Fog overnight. Low of 54F. Winds from the SSW at 5 to 20 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 57 | 53 72 | 50 71 | 50 58 | 50
Wind 4 mph WSW 11 mph WSW 15 mph SW 7 mph SW
Humidity 85% 47% 47% 77%
Chance of Precip. 0% 0% 0% 10%
Cloud Cover 79% 81% 28% 95%
Conditions Fog Mostly Cloudy Partly Cloudy Fog
Sunrise & Sunset
5:42 AM
7:49 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.59], Average RMSE [2.10]
The National Weather Service forecast quality is good. MaxT RMSE [2.37], Average RMSE [2.07] : Use NWS
Source: BestForecast at 6:19 AM PDT on May 21, 2013
Descriptive Forecast
Thursday
partlycloudy Overcast in the morning, then partly cloudy. Fog early. High of 73F. Winds from the SSW at 10 to 15 mph.
Thursday Night
nt_partlycloudy Clear in the evening, then partly cloudy. Low of 52F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 50 68 | 46 69 | 47 58 | 48
Wind 2 mph East 11 mph WSW 12 mph WSW 3 mph SE
Humidity 83% 46% 45% 71%
Chance of Precip. 10% 10% 10% 0%
Cloud Cover 95% 76% 27% 24%
Conditions Fog Mostly Cloudy Partly Cloudy Clear
Sunrise & Sunset
5:42 AM
7:50 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.61], Average RMSE [1.76]
The National Weather Service forecast quality is fair. MaxT RMSE [2.94], Average RMSE [2.42] : Use NWS
Source: BestForecast at 6:19 AM PDT on May 21, 2013
Descriptive Forecast
Friday
partlycloudy Partly cloudy. High of 73F. Winds from the SSW at 5 to 15 mph.
Friday Night
nt_partlycloudy Partly cloudy. Low of 54F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 54 | 44 70 | 43 68 | 45 58 | 46
Wind 2 mph East 10 mph SSW 9 mph SSW 1 mph SSE
Humidity 69% 36% 46% 65%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 33% 39% 34% 53%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
5:41 AM
7:50 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.59], Average RMSE [1.93]
The National Weather Service forecast quality is poor. MaxT RMSE [3.68], Average RMSE [2.03] : Use NWS
Source: BestForecast at 6:19 AM PDT on May 21, 2013
Descriptive Forecast
Saturday
partlycloudy Partly cloudy in the morning, then overcast. High of 77F. Winds from the SSW at 5 to 15 mph.
Saturday Night
nt_partlycloudy Partly cloudy. Low of 52F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 55 | 44 71 | 43 68 | 45 56 | 46
Wind 2 mph SE 10 mph SSW 9 mph SW 2 mph South
Humidity 65% 35% 42% 68%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 84% 70% 35% 33%
Conditions Mostly Cloudy Mostly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
5:41 AM
7:51 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.15], Average RMSE [2.20]
The National Weather Service forecast quality is poor. MaxT RMSE [4.12], Average RMSE [2.14] : Use NWS
Source: BestForecast at 6:19 AM PDT on May 21, 2013
Descriptive Forecast
Sunday
partlycloudy Partly cloudy. High of 81F. Winds from the SSW at 5 to 15 mph.
Sunday Night
nt_partlycloudy Partly cloudy. Low of 57F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 54 | 43 74 | 42 64 | 46 58 | 48
Wind 2 mph ESE 10 mph SW 10 mph SSW 3 mph ESE
Humidity 63% 31% 52% 68%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 38% 52% 19% 24%
Conditions Partly Cloudy Partly Cloudy Clear Clear
Sunrise & Sunset
5:40 AM
7:52 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.18], Average RMSE [2.68]
The National Weather Service forecast quality is poor. MaxT RMSE [5.02], Average RMSE [2.70] : Use NWS
Source: BestForecast at 6:19 AM PDT on May 21, 2013
Descriptive Forecast
Monday
partlycloudy Partly cloudy. High of 81F. Winds from the SW at 5 to 15 mph.
Monday Night
nt_partlycloudy Partly cloudy. Low of 54F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 58 | 46 67 | 45 71 | 51 57 | 51
Wind 2 mph ESE 10 mph SW 10 mph SW 2 mph SSE
Humidity 64% 45% 46% 78%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 45% 53% 20% 33%
Conditions Partly Cloudy Partly Cloudy Clear Partly Cloudy
Sunrise & Sunset
5:40 AM
7:52 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.50], Average RMSE [2.95]
Source: BestForecast at 6:19 AM PDT on May 21, 2013
Descriptive Forecast
Tuesday
partlycloudy Partly cloudy. High of 77F. Winds from the SSW at 5 to 15 mph.
Tuesday Night
nt_partlycloudy Partly cloudy. Low of 54F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 58 | 48 73 | 47 70 | 50 58 | 50
Wind 2 mph East 10 mph SW 10 mph SW 3 mph SW
Humidity 69% 39% 49% 73%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 40% 54% 35% 31%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
5:39 AM
7:53 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.56], Average RMSE [3.20]
Source: BestForecast at 6:19 AM PDT on May 21, 2013
Descriptive Forecast
Wednesday
partlycloudy Partly cloudy. High of 75F. Winds from the WSW at 5 to 15 mph.
Wednesday Night
nt_partlycloudy Clear. Low of 55F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 50 72 | 50 70 | 50 58 | 53
Wind 1 mph West 5 mph WSW 10 mph WSW 3 mph SW
Humidity 79% 46% 49% 78%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 40% 51% 29% 30%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
5:39 AM
7:53 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.16], Average RMSE [2.12]
Source: BestForecast at 6:19 AM PDT on May 21, 2013
Descriptive Forecast
Thursday
clear Clear. High of 75F. Winds from the WSW at 5 to 15 mph.
Thursday Night
nt_clear Clear. Low of 55F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 58 | 53 69 | 47 71 | 44 62 | 43
Wind 1 mph NW 4 mph WSW 10 mph WSW 2 mph WSW
Humidity 84% 47% 36% 50%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 2% 2% 3% 1%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:39 AM
7:54 PM
Source: BestForecast at 6:19 AM PDT on May 21, 2013
Descriptive Forecast
Friday
clear Clear. High of 84F. Winds from the WNW at 5 to 15 mph.
Friday Night
nt_clear Clear. Low of 55F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 59 | 42 75 | 38 77 | 36 63 | 37
Wind 2 mph NNW 3 mph WNW 9 mph West 2 mph West
Humidity 51% 26% 22% 37%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% %
Conditions Clear Clear Clear Clear
Sunrise & Sunset
Sun does not rise
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
Active Notice: Public Information Statement  (US Severe Weather)
History & Almanac
May 21, 2013 Max Temp Min Temp
Normal (KRAL) 81 °F 56 °F
Record (KRAL) 105 °F (2000) 36 °F (1948)
Yesterday 95 °F 58 °F
Yesterday's Cooling Degree Days: 12
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
Pine Mountain Club, California 122 miles 3.2 3:04 AM PDT
2013-05-16
Aguanga, California 56 miles 2.9 5:30 PM PDT
2013-05-15
Rancho Palos Verdes, California 69 miles 4.0 1:00 PM PDT
2013-05-15
Cabazon, California 31 miles 3.1 9:20 AM PDT
2013-05-15
Minimum magnitude displayed is 2.5.
More information at USGS.gov
Air Quality
  Air Quality AQ Index Pollutant
Yesterday Moderate
OZONE
Yesterday Good
PM10
Current Good
OZONE
Tuesday Good
PM10
Tuesday Moderate
OZONE
Tuesday Good
CO
Tuesday Good
NO2
Astronomy
May. 21, 2013 Rise Set
Actual Time 5:43 AM PDT 7:48 PM PDT
Civil Twilight 5:15 AM PDT 8:16 PM PDT
Nautical Twilight 4:41 AM PDT 8:51 PM PDT
Astronomical Twilight 4:04 AM PDT 9:28 PM PDT
Moon 4:15 PM PDT 3:03 AM PDT
Length Of Visible Light 15h 01m
Length of Day
14h 05m
Tomorrow will be 1m 16s longer.
Waxing Gibbous, 84% of the Moon is Illuminated
Today
Waxing Gibbous
May 24
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Visit Astronomy
Today's Extremes
State Highs State Lows
82 °F
Palm Springs
79 °F
Thermal
78 °F
El Centro
78 °F
Red Bluff
78 °F
Needles
32 °F
Big Bear City
33 °F
Truckee-Tahoe
39 °F
South Lake Tahoe
43 °F
Mount Shasta
44 °F
Tehachapi
Record Extremes
Snow Depth
Station Depth Elevation
Leavitt Lake 61 in 9400 ft
Leavitt Meadows 1 in 7200 ft
Sonora Pass 0 in 8800 ft
Summit Meadow 1 in 9122 ft
Ebbetts Pass 0 in 8700 ft
Snow Depth Reports — Snow Depth Map
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Aviation
City Temp. Conditions Updated
San Bernardino 66 °F Mostly Cloudy 8:51 AM PDT
Riverside 61 °F Overcast 8:53 AM PDT
Riverside March 71 °F Clear 8:58 AM PDT
Ontario 65 °F Haze 8:53 AM PDT
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Flight To ETA Status
SKW3460
Portland, OR 		KONT 08:55AM On Time
SWA2697
Las Vegas, NV 		KONT 09:05AM On Time
SWA2325
Phoenix, AZ 		KONT 09:08AM On Time
SWA2715
Oakland, CA 		KONT 09:17AM On Time
Flight Tracker by FlightAware FlightAware
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Type Condition
Flight Rule: IFR (KCNO)
Wind Speed: 4.0 kts.
Wind Dir: 0° (Variable)
Ceiling: 1000 ft

METAR KCNO 211553Z VRB04KT 3SM HZ OVC010 18/14 A2995 RMK AO2 SLP139 T01830144

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Nearby Events
Event Date Forecast
Inland Empire 66ers vs. San Jose Giants 7:00 PM PDT
2013-04-18		 Clear, 72°F
Inland Empire 66ers vs. San Jose Giants 7:00 PM PDT
2013-04-19		 Clear, 74°F
Inland Empire 66ers vs. San Jose Giants 7:00 PM PDT
2013-04-20		 Partly Cloudy, 73°F
Pato Banton 420 Celebration with Additional bands to be named 3:00 PM PDT
2013-04-20		 Clear, 78°F
Inland Empire 66ers vs. San Jose Giants 2:00 PM PDT
2013-04-21		 Clear, 72°F
Event data courtesy eviesays.com
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Watch the nearly year-long satellite animation as Weather Underground calls out the most significant weather events of the past year, including Superstorm Sandy and Hurricane Isaac.

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Weather Stations
Station Location Temp. Heat Index Dew Point Humidity Wind Precipitation Elevation Updated Type Website
MesoWest San Bernardino , San Bernardino, CA 62 °F - 58 °F 86% North  at  0 mph 0.00 in / hr 1049 ft 6:49 AM PDT MADIS
North San Bernardino, San Bernardino, CA 69.6 °F - 57 °F 65% SE  at  2.0 mph 0.00 in / hr 1278 ft 9:03 AM PDT Rapid Fire
MesoWest BENCH , San Bernardino, CA 56 °F - - - North  at  - 0.00 in / hr 1312 ft 6:25 AM PDT MADIS
Loma Linda RF, Loma Linda, CA 69.3 °F - 58 °F 68% WNW  at  2.2 mph 0.00 in / hr 1160 ft 9:01 AM PDT Normal  
Cat Crossing Ink, Rialto, CA 72.0 °F 76 °F 59 °F 64% West  at  2.3 mph 0.00 in / hr 1125 ft 9:03 AM PDT Rapid Fire
MesoWest San Bernardino-CSU , San Bernardino, CA 61 °F - 54 °F 78% North  at  1 mph 0.00 in / hr 1520 ft 6:55 AM PDT MADIS
Loma Linda, Loma Linda, CA 70.0 °F - 58 °F 66% WNW  at  0.0 mph 0.00 in / hr 1165 ft 9:03 AM PDT Rapid Fire  
MesoWest LOMA1 , Bryn Mawr, CA 67 °F - - - NNW  at  4 mph 0.00 in / hr 1244 ft 8:15 AM PDT MADIS
rialto airport, Rialto, CA 66.6 °F - 59 °F 76% West  at  1.0 mph 0.00 in / hr 1465 ft 9:03 AM PDT Rapid Fire  
Redlands., Redlands, CA 62.5 °F - 56 °F 79% SE  at  0.0 mph 0.00 in / hr 1350 ft 7:35 AM PDT Rapid Fire  
Highgrove, Ca, Riverside, CA 75.7 °F 78 °F 62 °F 62% WSW  at  3.1 mph 0.00 in / hr 1129 ft 9:03 AM PDT Rapid Fire  
Oaktree Development Co., Redlands, CA 70.1 °F 75 °F 58 °F 65% North  at  0.0 mph 0.00 in / hr 1350 ft 9:03 AM PDT Rapid Fire
Smiley Heights, Redlands, CA 68.2 °F - 57 °F 68% North  at  3.0 mph 0.00 in / hr 1578 ft 9:03 AM PDT Rapid Fire  
Redlands High School-Terriers, Redlands, CA 68.6 °F - 56 °F 65% NNE  at  0.0 mph 0.00 in / hr 1505 ft 9:03 AM PDT Rapid Fire  
APRSWXNET Redlands CA , Redlands, CA 64 °F - 59 °F 83% NW  at  0 mph 0.00 in / hr 1568 ft 8:44 AM PDT MADIS
NonFedAWOS REDLANDS , Redlands, CA 63 °F - 54 °F 72% North  at  - 0.00 in / hr 1570 ft 7:55 AM PDT MADIS
Citrus Heights, Fontana, CA 66.4 °F - 50 °F 56% North  at  0.0 mph 0.00 in / hr 1550 ft 9:03 AM PDT Normal  
MesoWest Moreno Valley , Moreno Valley, CA 60 °F - 56 °F 86% North  at  0 mph 0.00 in / hr 1924 ft 6:49 AM PDT MADIS
Top of Sycamore Canyon, Riverside, CA 63.7 °F - 58 °F 82% West  at  3.1 mph 0.00 in / hr 1445 ft 9:03 AM PDT Rapid Fire  
Ironwood/Graham North of the 60 Fwy, Moreno Valley, CA 68.5 °F - 38 °F 32% SE  at  2.7 mph 0.00 in / hr 1584 ft 9:03 AM PDT Rapid Fire
MesoWest Jurupa Valley , Riverside, CA 59 °F - 58 °F 96% North  at  0 mph 0.00 in / hr 794 ft 6:49 AM PDT MADIS
North MoVal - Ironwood/Indian, Moreno Valley, CA 69.8 °F - - 32% South  at  3.1 mph 0.00 in / hr 1705 ft 9:03 AM PDT Rapid Fire
Southwest Fontana, Fontana, CA 65.5 °F - 57 °F 75% SSW  at  1.0 mph 0.00 in / hr 994 ft 9:02 AM PDT Normal  
RAWS DEVORE CA, San Bernardino, CA 67 °F - 37 °F 33% SE  at  2 mph 0.00 in / hr 2081 ft 7:10 AM PDT MADIS
San Moritz, Crestline, CA 72.8 °F 76 °F 37 °F 27% ESE  at  2.0 mph 0.00 in / hr 4618 ft 9:02 AM PDT Normal
MesoWest Crestline , Crestline, CA 63 °F - 29 °F 27% North  at  0 mph 0.00 in / hr 5100 ft 6:54 AM PDT MADIS
MesoWest Crestline Ridge , Cedarpines Park, CA 62 °F - 31 °F 31% East  at  3 mph 0.00 in / hr 5299 ft 6:44 AM PDT MADIS
Blue Jay/Agua Fria, Lake Arrowhead, CA 68.4 °F - 19 °F 15% NE  at  3.1 mph 0.00 in / hr 5221 ft 9:03 AM PDT Rapid Fire  
Arrowhead, CA 65.1 °F - 35 °F 33% South  at  4.0 mph - / hr 5282 ft 8:52 AM PDT Normal  
MesoWest Running Springs Smiley Park , Running Springs, CA 58 °F - 37 °F 46% North  at  1 mph 0.00 in / hr 5439 ft 6:55 AM PDT MADIS
MesoWest Arrowhead Northwest , Twin Peaks, CA 61 °F - 32 °F 34% North  at  0 mph 0.00 in / hr 5450 ft 6:54 AM PDT MADIS
Rimforest, CA 63.4 °F - 30 °F 28% WSW  at  0.0 mph 0.00 in / hr 5642 ft 9:02 AM PDT Normal  
MesoWest Rimforest , Twin Peaks, CA 56 °F - 31 °F 38% North  at  0 mph 0.00 in / hr 5709 ft 6:55 AM PDT MADIS
twinpeaksweather.com, Twin Peaks, CA 62.1 °F - 38 °F 41% SSE  at  0.0 mph 0.00 in / hr 5715 ft 8:59 AM PDT Normal
Lake Arrowhead, Twin Peaks, CA 66.4 °F - 32 °F 28% SSE  at  6.0 mph 0.00 in / hr 5775 ft 9:03 AM PDT Rapid Fire  
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Public Information Statement
Mobile & Email Alerts Statement as of 6:25 am PDT on May 21, 2013

The following is a safe boating message from the National safe
boating Council and the National Weather Service, reminding you that
National safe boating week is may eighteenth through may
twenty-fourth. Understanding a marine forecast is critical to safe
boating. Weather and wave conditions can change suddenly, catching
boaters off guard and creating life threatening conditions. Typical
marine forecasts predict wind speed and direction, wave heights and
periods, roughness of near shore waters, and significant weather.
Marine forecasts cover large areas and the forecast elements are
often given in ranges. The significant weather may not occur over
the entire area or during the entire forecast period. The ranges
represent average conditions over a period of time, usually 12
hours, and the actual conditions may be lower or higher than the
forecast range. Boaters should plan for conditions above and below
the predicted ranges. Take particular note of any current advisories
and warnings, including small craft advisories, gale or storm
warnings which alert mariners to either high winds or waves
occurring now or forecast to occur up to 24 hours from now. Special
marine warnings indicate a more immediate threat and are issued for
sudden increase in winds to over 35 knots, or 40 mph, waterspouts,
and hail of 3 quarters of an inch or greater. Marine weather
statements bring attention to significant rapidly changing
conditions on the water including increase in winds, non-severe
thunderstorms, and development of dense fog and gusty rain showers.
You should have a marine v h f transceiver with built-in NOAA
Weather Radio channels. If you venture beyond about a 25 nautical
mile range from shore, you should consider buying a good quality
high frequency single side-band transceiver and satellite phone.
Before setting out, obtain the latest marine forecast and warning
information from W W W dot weather dot gov slash marine, or NOAA
Weather Radio. Several days ahead of time you can begin listening
for extended outlooks which give general information out to the next
five days in both graphical and text format. To learn more, visit
the National safe boating Council online, at W W W dot safe boating
Council dot Org and visit the National Weather Service at W W W dot
weather dot gov.





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